Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
canh tinh » hanh tinh, manh tinh, canh tranh
manh binh » thanh binh, ninh binh, tinh binh
phan cac » nhan cach, phan dau, phan lap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - ((canh tinh) or (manh binh)) va nhung huong dan ((phan cac) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - ((canh tinh) OR (manh binh)) va nhung huong dan ((phan cac) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - ((canh tinh) or (manh binh)) va nhung huong dan ((phan cac) or (phan tu))*.